``We are prepared to have negotiations with major powers on CTBT and we will take a decision only if we reach an agreement,'' they said, shortly before President K R Narayanan left for Portugal after a five-day visit to Germany.

During talks with German President Roman Herzog and Chancellor Helmut Kohl, Narayanan said there would be no compromise on the nuclear policy.

Germany did not exert pressure on New Delhi during the parleys here to sign the treaty but suggested that India should now agree to sign it since it had conducted nuclear tests, the sources said.

Responding to Germany's suggestion, India said that the existing signatories to CTBT must also renounce further nuclear tests, they said.

As far as India was concerned, it had already fulfilled the general requirements of CTBT likea moratorium on further nuclear tests, officials said.

Replying to a question, the sources said, ``Germany made a friendly suggestion to India to sign the CTBT. But there was no pressure from Bonn''.

Indo-Pakistan relations, including Kashmir, also figured during the talks. The President explained India's stand on the issue and its willingness to resume the stalled foreign secretary-level talks to resolve all outstanding issues.

Replying to a question, the sources said there was a passing reference to Nuclear Non-Proliferation Treaty but there was no discussion on it.

Both Germany and India expressed concern over the growing tension in the South Asian region and were of the view that confidence-building measures should be initiated to ease the tension.

Developments in Afghanistan and China also figured during the discussions, the sources said, adding Germany expressed concern over the growth of fundamentalism.

In an interaction with intellectuals and academics in the Humboldt University of Berlin,Narayanan said economic reforms in India were irreversible and urged the Germans to invest in India.

The President also spoke of the cultural past of the country and its modern image.